Using classic Outlook for Windows in business environments
https://discussions.apple.com/thread/253810183?page=3
JonnyW982
Hello All,
I have been using AOL mail for over a decade and experience this same problem on all my devices and 3rd party mail apps. I contacted AOL escalated tech support about this issue, and they said "this is working as intended".
Apparently, AOL changed their imap and pop download limits to 10,000 messages per folder. And they did this without proper advance notice to their free or premium users. They said their web mail or aol client should be used to access or search any email beyond the 10,000 recent email limit.
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edit: formatting